Page 385 of 2771

AV-26
< SERVICE INFORMATION >
AUDIO
Satellite Radio Tuner (Factory Installed) Left Channel Audio Signal Circuit Inspection
INFOID:0000000001704666
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector B30 (A) and audio unit connector M45 (B).
3. Check continuity between satellite radio tuner (factory installed) and audio unit.
4. Check continuity between satellite radio tuner (factory installed)
and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2.CHECK LEFT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit.
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner (factory installed)
connector B30 terminals 21 and 22 with CONSULT-Ill or oscillo-
scope.
OK or NG
OK >> Replace audio unit. Refer to AV-36, "Removal and
Installation" .
NG >> Replace satellite radio tuner. Refer to AV-36, "
Removal
and Installation" .
Satellite Radio Tuner (Factory Installed) Right Channel Audio Signal Circuit Inspection
INFOID:0000000001704667
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector B30 (A) and audio unit connector M45 (B).
3. Check continuity between satellite radio tuner (factory installed) and audio unit.
Te r m i n a l s
Continuity Satellite radio tuner Audio unit
Connector Terminal Connector Terminal
A: B3021
B: M4541
Ye s
22 42
Te r m i n a l s
Continuity Satellite radio tuner
—
Connector Terminal
A: B3021
Ground No
22
WKIA4547E
21 - 22 : Refer to AV-20, "Terminal
and Reference Value for Sat-
ellite Radio Tuner" .
WKIA4548E
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AUDIO
AV-27
< SERVICE INFORMATION >
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4. Check continuity between satellite radio tuner (factory installed)
and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2.CHECK RIGHT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit.
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner (factory installed)
connector B30 terminals 23 and 24 with CONSULT-lIl or oscillo-
scope.
OK or NG
OK >> Replace audio unit. Refer to AV-36, "Removal and
Installation" .
NG >> Replace satellite radio tuner. Refer to AV-36, "
Removal
and Installation" .
Steering Switch Check (With Bluetooth)INFOID:0000000001704668
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit connector and spiral cable connector M30.
3. Check continuity between Bluetooth control unit (A) connector B121 terminals 12, 14, and 13 and spiral
cable (B) connector M30 terminals 24, 31, and 32.
4. Check continuity between Bluetooth control unit and ground.
Te r m i n a l s
Continuity Satellite radio tuner Audio unit
Connector Terminal Connector Terminal
A: B3023
B: M4543
Ye s
24 44
Te r m i n a l s
Continuity Satellite radio tuner
—
Connector Terminal
A: B3023
Ground No
24
WKIA4549E
23 - 24 : Refer to AV-20, "Terminal
and Reference Value for Sat-
ellite Radio Tuner" .
WKIA4550E
Te r m i n a l s
Continuity AB
Connector Terminal Connector Terminal
B12112
M3024
Ye s 13 32
14 31
WKIA5348E
Page 387 of 2771

AV-28
< SERVICE INFORMATION >
AUDIO
OK or NG
OK >> GO TO 3.
NG >> Repair harness.
2.CHECK HARNESS
1. Disconnect audio unit connector.
2. Check continuity between audio unit (A) connector M43 terminals 6, 15, and 16 and Bluetooth control unit
(B) connector B121 terminals 17, 19, and 18.
OK or NG
OK >> GO TO 4.
NG >> Repair harness.
3.SPIRAL CABLE CHECK
1. Disconnect spiral cable connector M102.
2. Check continuity between spiral cable terminals.
OK or NG
OK >> GO TO 4.
NG >> Replace spiral cable. Refer to SRS-36, "
Removal and
Installation" .
4.CHECK STEERING SWITCH RESISTANCE
Check resistance between spiral cable connector M102 terminals.
OK or NG
Te r m i n a l s
Continuity (+)
(–)
Connector Terminal
B12112
Ground No 13
14
Te r m i n a l s
Continuity (A) (B)
Connector Terminal Connector Terminal
M436
B12117
Ye s 15 19
16 18
WKIA5349E
16 - 32 : Continuity should exist.
17 - 31 : Continuity should exist.
20 - 24 : Continuity should exist.
WKIA4424E
Terminal Signal name ConditionResistance
(Ω)
(Approx.)
16 17Seek (down) Depress Seek down switch. 165
Phone/Send Depress Phone/Send switch. 0
Volume (down) Depress volume down switch. 487
20 17Seek (up) Depress Seek up switch. 165
Phone/End Depress Phone/End switch. 0
Volume (up) Depress volume up switch. 487
LKIA0191E
Page 388 of 2771

AUDIO
AV-29
< SERVICE INFORMATION >
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OK >> Inspection End.
NG >> Replace steering switch. Refer to AV-36, "
Removal and Installation" .
Sound Is Not Heard from Front Door Speaker (Base System)INFOID:0000000001704669
1.HARNESS CHECK
1. Disconnect audio unit connector and front door speaker connector (LH or RH).
2. Check continuity between audio unit connector M43 (A) terminal
and suspect speaker connector (B) terminal.
3. Check continuity between audio unit connector M43 terminal
and ground.
OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.FRONT SPEAKER SIGNAL CHECK
1. Connect audio unit connector and suspect speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
Te r m i n a l s
Continuity A B
Connector Terminal Connector Terminal
M432
D12+
Ye s 3-
11
D112+
12 -
Te r m i n a l s
Continuity Audio unit
—
Connector Terminal
M432
Ground No 3
11
12
WKIA5444E
Page 389 of 2771

AV-30
< SERVICE INFORMATION >
AUDIO
4. Check the signal between audio unit harness connector termi-
nals with CONSULT-III or oscilloscope.
OK or NG
OK >> Replace speaker. Refer to AV-36, "Removal and Instal-
lation" or AV-36, "Removal and Installation" .
NG >> Replace audio unit. Refer to AV-36, "
Removal and
Installation" .
Sound Is Not Heard from Rear Door Speaker (Base System)INFOID:0000000001704670
1.HARNESS CHECK
1. Disconnect audio unit connector and rear door speaker connector.
2. Check continuity between audio unit (A) connector terminal and
rear door speaker (B) connector terminal.
3. Check continuity between audio unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.REAR SPEAKER SIGNAL CHECK
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nec-
torTe r m i -
nalCon-
nec-
torTe r m i -
nal
M432
M433
Receive
audio
signal 11 1 2
WKIA5352E
SKIA0177E
Te r m i n a l s
Continuity AB
Connector Terminal Connector Terminal
M435
D207-
Ye s 4+
14
D307-
13 +
Te r m i n a l s
Continuity Audio unit
—
Connector Terminal
M435
Ground No 4
14
13
WKIA5353E
Page 390 of 2771

AUDIO
AV-31
< SERVICE INFORMATION >
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1. Connect audio unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector termi-
nals with CONSULT-III or oscilloscope.
OK or NG
OK >> Replace speaker. Refer to AV-36, "Removal and Instal-
lation" .
NG >> Replace audio unit. Refer to AV-36, "
Removal and
Installation" .
Sound Is Not Heard from Front Door Speaker or Tweeter (Mid Level and Premium Sys-
tem)
INFOID:0000000001704671
1.HARNESS CHECK
1. Disconnect audio unit connector and front door speaker and tweeter connector (LH or RH).
2. Check continuity between audio unit harness connector terminal
and front door speaker and tweeter harness connector terminal.
3. Check continuity between audio unit harness connector terminal
and ground.
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nectorTe r m i -
nalCon-
nectorTe r m i -
nal
M434
M435
Receive
audio
signal 13 14
WKIA5354E
SKIA0177E
Te r m i n a l s
Continuity Audio unit. Speaker or tweeter
Connector Terminal Connector Terminal
M432
M46+
Ye s 3-
11
M47+
12 -
2
D12+
3-
11
D112+
12 -
WKIA5351E
Page 391 of 2771

AV-32
< SERVICE INFORMATION >
AUDIO
OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.FRONT SPEAKER SIGNAL CHECK
1. Connect audio unit connector, front door speaker connector and tweeter connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit connector terminals with
CONSULT-III or oscilloscope.
OK or NG
OK >> Replace front speaker. Refer to AV-36, "Removal and
Installation" .
NG >> Replace audio unit. Refer to AV-36, "
Removal and
Installation" .
Sound Is Not Heard from Rear Door Speaker (Mid Level and Premium System)
INFOID:0000000001704672
1.HARNESS CHECK
1. Disconnect audio unit connector and rear door speaker connector.
Te r m i n a l s
Continuity Audio unit
—
Connector Terminal
M432
Ground No 3
11
12
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nectorTe r m i -
nalCon-
nectorTe r m i -
nal
M512
M513
Receive
audio
signal 11 1 2
WKIA5352E
SKIA0177E
Page 392 of 2771

AUDIO
AV-33
< SERVICE INFORMATION >
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2. Check continuity between audio unit harness connector terminal
and speaker harness connector terminal.
3. Check continuity between audio unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.REAR SPEAKER SIGNAL CHECK
1. Connect audio unit connector and rear door speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector termi-
nals with CONSULT-III or oscilloscope.
OK or NG
OK >> Replace speaker. Refer to AV-36, "Removal and Instal-
lation" .
NG >> Replace audio unit. Refer to AV-36, "
Removal and
Installation" .
Te r m i n a l s
Continuity Audio unit Speaker
Connector Terminal Connector Terminal
M434
D207+
Ye s 5-
13
D307+
14 -
Te r m i n a l s
Continuity Audio unit
—
Connector Terminal
M434
Ground No 5
13
14
WKIA5353E
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nec-
torTe r m i -
nalCon-
nec-
torTe r m i -
nal
M435
M434
Re-
ceive
audio
signal 14 13
WKIA5354E
SKIA0177E